you can, but why? you are then draining the entire hot water system.(unless that's what you want to do). your better off, shutting off the cold inlet valve to the water heater, shut off the recirc line valve, shut off the outlet valve ( if one is installed) open the drain valve and loosen a di ...

Hi Coldnbroke, Thanks for the reply. No I did actually mean 100lb bottles. I need the steel or aluminum hood that sits above the two bottles to protect the regulator. It opens up like a car hood when you want to access the bottles for filling or checking for empty tank. Thanks, Dan

If the above answers are not quite working for you, then maybe you could consider replacing the entire pump unit. It should not be expensive to replace and you could also try used parts resellers which offer good ones with a warranty. This should certainly solve your problem and you could ...